Cloud-Surface Recovery Difficulty-graded Dataset

The Cloud-Surface Recovery Difficulty-graded Dataset is designed for evaluating cloud removal techniques by categorizing cloudy images into three difficulty levels: Easy, Medium, and Hard. These difficulty levels are based on the complexity of the cloud cover and its interaction with the underlying surface. Additionally, the dataset is further divided into four seasonal subsets—Spring, Summer, Autumn, and Winter—resulting in a total of 12 subsets. Each subset represents cloud images from a specific season and difficulty level, providing a diverse set of images that allow for thorough testing and benchmarking of cloud removal models across different cloud coverages and seasonal conditions.